I-PoE iteknoloji enika amandla kunye nokuhanjiswa kwedatha ngeentambo zenethiwekhi.Inye kuphela intambo yenethiwekhi efunekayo ukuze udibanise kwindawo yekhamera ye-PoE, ngaphandle kwemfuneko yocingo olongezelelweyo lwamandla.
Isixhobo se-PSE sisixhobo esinika amandla kwisixhobo somxhasi we-Ethernet, kwaye kwakhona ngumphathi wawo wonke amandla e-POE phezu kwenkqubo ye-Ethernet.Isixhobo se-PD ngumthwalo we-PSE ofumana amandla, oko kukuthi, isixhobo somthengi wenkqubo ye-POE, njengefowuni ye-IP, ikhamera yokhuseleko yenethiwekhi, i-AP, umncedisi wedijithali lomntu okanye ishaja yefowuni kunye nezinye izixhobo ezininzi ze-Ethernet (enyanisweni, nayiphi na isixhobo esinamandla angaphantsi kwe-13W sinokufumana amandla ahambelanayo kwi-socket ye-RJ45).Ezi zimbini ziseka uxhulumaniso lolwazi olusekelwe kumgangatho we-IEEE 802.3af malunga nesimo soxhumo, uhlobo lwesixhobo, inqanaba lokusetyenziswa kwamandla, kunye neminye imiba ye-PD yesixhobo sokugqibela sokufumana, kwaye sisebenzise oku njengesiseko se-PSE ukunika amandla iPD nge-Ethernet.
Xa ukhetha utshintsho lwe-PoE, la manqaku alandelayo kufuneka aqwalaselwe:
1. Amandla ezibuko elinye
Qinisekisa izibuko elinye lamandla adibana namandla aphezulu ayo nayiphi na i-IPC encanyathiselwe kwisitshixo okanye hayi.Ukuba ewe, khetha iinkcukacha zokutshintsha ngokusekelwe kumandla aphezulu e-IPC.
Amandla e-PoE IPC eqhelekileyo ayidluli i-10W, ngoko ke utshintsho lufuna kuphela ukuxhasa i-802.3af.Kodwa ukuba imfuno yamandla yabanye oomatshini bebhola be-speed-speed malunga ne-20W, okanye ukuba amandla okufikelela kwi-wireless APs aphezulu, ngoko ke utshintsho kufuneka luxhase i-802.3at.
Oku kulandelayo ngamagunya emveliso ahambelana nobu buchwepheshe bumbini:
2. Ubuninzi bokunikezelwa kwamandla okutshintsha
iimfuno, kwaye uqwalasele amandla ayo yonke IPC ngexesha loyilo.Unikezelo lwamandla oluphezulu lwemveliso yokutshintsha kufuneka lube lukhulu kunesixa sawo onke amandla e-IPC.
3. Uhlobo lonikezelo lwamandla
Akukho mfuneko yokuqwalasela ukusebenzisa intambo yenethiwekhi engundoqo esibhozo yokuhanjiswa.
Ukuba intambo yenethiwekhi engundoqo ezine, kuyimfuneko ukuqinisekisa ukuba umtshini uxhasa umbane weKlasi A okanye cha.
Ngamafutshane, xa ukhetha, unokuqwalasela iingenelo kunye neendleko zeendlela ezahlukeneyo ze-PoE.
Ixesha lokuposa: Jun-05-2021